Gasket.



J. DARLINGTON, JR.

GASKET.

APPLICATION FILED JAN.19,1910.

www5.,

Patented June 18, 1912.

- resident of 4Westville,

- `ments in Gaskets,

Jnssn DARLINGTON', Jn., oF wnsTvILLE, Nnw JERSEY, AssIGNoR or ONE-HALFTo ADOLPH M. PLUMMER, OF WESTYILLE,

NEW JERSEY.

GASKET.

Specification of Letters Patent.

PatentedJ une 18, 1912.

To all 'whom it may concern.'

Be it known that I, JESSE DARLINGTON, Jr., a citizen of the UnitedStates, anda Gloucester county, have invented certain Improveof whichthe following is New Jersey,

a specification.

My invention relates in general to gaskets and more. particularly tothose designed to be placed between the meeting ends of pipes orYsections of conduits designed to carry steam, water or other fluids orliquids at various pressures; the object of my invention being `toprovide an improved form of gasket with a view of securing a Huid tightvjoint and preventing absolutely all danger of leakage at such joint.

My invention is fully shown in the accompanying drawings, in whichFigure 1, is a sectional view of the meeting ends of ianged pipes,showing one form of my improved gasket applied thereto; the parts ofsuch view -being slightly exaggerated to illust-rate the operat-ion ofthe improved structure forming the subject of my invention; Fig. 2, is aperspective view of the gasket shown in Fig. 1; Fig. 3, is a sectionalperspective view, showing the con- .dition of the gasket illustrated inFig. l,

when applied in place and before use; Fig. 4, Ais a sectionalperspective view, illustrating substantially the manner in which thegasket shown in Fig. l, is compressed in use, and Figs. 5 6, 7 and 8,are views of other forms of gaskets embodying my invention.

It has been the common practice to employ a single thickness ofmaterial, sheet,

metal such as copper for instance, suitably corrugated, as a gasketbetween the meeting ends of pipes o r conduit. sections. In practice,the spring of the flanges of such pipes or conduit sections when drawntogether by bolts or other fastening means is to effect a tight clampingoperation upon the outer portion of the gasket, while the inner portion,that adjacent the bore of the pipe or conduit section, is relativelyunconfined and permits entrance to the joint of the Huid or or conduit,with the consequent danger of leakage which frequently occurs.

liquid passing through the pipe` wedge-shaped space usually presentedwhen the fastening means draw the flanges of the pipe or conduitsections together. AThis generic idea may be carried outin a number ofways as illustrated in the drawings.

As shown in Figs. l to 4, inclusive, I have combined an ordinary gasket,which may be suitably corrugated, such for-instance as indicated at l,with another gasket which may 'also be corrugated, such as indicated at2, each having a central aperture of substantially the same diameter,vbutdiifering in their total area. In this embodiment of my invention thegasket 2 may be substantially half the width of the gasket l and theymay be arranged with the smaller gasket disposed over the inner portionof the larger gasket. When of metal, these gaskets/ are preferablycorrugated as shown, and in Fig. l they are illustrated in positionbetween the meeting ends of the anged pipe or conduit sections 3 and 4,held together by suitable means, such as bolts 5 and nuts 5a. Under thetension of the securing means, the flanges have a tendency to spring inthe manner illustrated in Fig. l, forming a substantially Vshaped spacebetween the meeting ends of said pipes or conduit sections, and thegasket I have de vised is designed to fill such V-shaped spaces eitheroriginally, or when compressed in the manner illustrated in Fig. l. Inpractice the V-shaped space may not be as large as is illustrated. Thepressure upon the gaskets will cause them to alter their original shape;the corrugated portions feeling the l'irst eiect of such compression,and in practice the compound gasket may flatten at its outer edges.

The pairof metal sections forming the compound gasket illustrated inFigs. l to 4:, inclusive, are preferably connected together by suitablemeans, for instance by wire ties indicated at 2a, which are preferablyof the same material as that composing the' gaskets so as to becompressible when the gaskets are in use.

In Fig. 5, -I have shown a wedge-shaped gasket which may be of anysuitable material cut or otherwise formed or shaped to as thatillustrated in Fig. 5, made of a plu'i rality of members, preferablytwo, indicated at 7 a and 7 b suitably secured together. The

l member 7 may be a section of material with a generally rectangularcross-sectional contour, with the member 7b wedge-sha ed.

In'Fig. 7 I have shown another orm of a compound wedge-shaped gasketmade of a plurality of parts. In this instance a core member 8, whichmay be of any suitable material, hard or resilient, and in someinstances of metal, has layers 9 of the same or other material appliedto both faces as clearly. indicated in the drawing. Aconvenientanddesirable arrangement is a hard or relatively hard core, metal forinstance, with layers of resilient material, fabric, rubber,rubber-fabric, or any oft-he Well known packing materials employed.

In Fig. 8, I have shown a structure of the lsame general character asthat illustrated' in Fig. 7, with a different form of core. Inthis-instance the c ore is corrugated as indicated at 8a, and as shownin the drawing,

it may be wedge-shaped. It may also be made of the same generalthickness throughout, to be compressed to the wedge-shape when appliedto the place of use. In all instances the sections or elements of thecompound .gaskets will be suitably connected together so as to becapable of use as an entirety, and the use to which the gasket is to beput will determine the material to be used.

Other forms of wedge-shaped gaskets, particularly those employing aplurality of parts, will suggest themselves to any one i skilled in theart, and these I deem to be within the scope ofmy invention and to becovered by the appended claims.-

I claim:

1. As a new article of manufacture, a gasket made of a plurality ofapertured disks of different diameters and of substantially the samethickness, and with central openings of substantially the same size, theinner portion of such gasket -being thicker than the outer portion ofthe same.

2. As a new article of manufacture, a metal gasket made of a pair ofapertured disks of different diameters, both disks being ofsubstantially the same thickness and with central openings substantiallythe same size, the inner portion of such gasket being thicker than theouter portion of the same.

3. As a new article of manufacture, a gasket made of a pair `ofapertured disks of corrugated material of substantially the samethickness, one disk being larger than the other, both "of said disksbeing provided with central apertures of substantially the same area,and the thickest part of said gasket 'being adjacent the aperturedportion of the same.

4. As a new article ofl manufacture, a metal gasket made of twoapertured disks of corrugated material having the same thickness, onedisk being larger than the other and both of. said disks being providedwith'central apertures of substantially the samue area, the thickestpart of said gasket being adjacent the apertured portion of the same.

In testimony whereof, I'have signed my name to this specification, inthe presence of .two subscribing witnesses. JESSE DARLINGTON, JR.

Witnesses: y

MURRAY C. BoYLE, WM. A. BARR.

